Automatic Scan By default, Error Nuker scans the registry for all types of errors. This is the simplest way to clean up the registry. Automatic Scan is recommended for 'non-technical' users. Custom Scans You customize your search and scan Windows registry for particular types of errors (shared DLLs, missing fonts, invalid startup entries, etc.). Manual Cleanup After the scan is complete, Error Nuker will show you a full list of errors with details, broken down by types and let you fix